Taq owsa , meaning: The old arch or Taq Bostan (Persian: Ø·Ø§Ù Ø§ÙØ³Ø§ââ, the old arch )[1] is a site with a series of large rock reliefs from the era of Sassanid Empire of Persia, the Iranian dynasty which ruled western Asia from 226 to 650 AD. This example of Sassanid art is located 5 km from the city center of Kermanshah in kurdistan . It is located in the heart of the Zagros mountains, where it has endured almost 1,700 years of wind and rain. Originally, several sources were visible next to and below the reliefs and arches, some of which are now covered. Sources next to the reliefs still feed a large basin in front of the rock. The site has been turned into an archaeological park and a series of late Sasanian and Islamic column capitals have been brought together (some found at Taq owsa , Taq owsan (the old arch) , or Taq wa san, others at Bisitun and Kermanshah).